Power-press



I ZSheets-Sheet 2.

(No Model.)

L. B. NEWELL.

'POWER PRESS.

Q'IaLVE NT-U'Ri Z2357 Pat g LSeptJZS, 1890.

UNIT D STATES PATENT OF ICE.

LORENZO B. NE'WELL, OF NEWTON CENTRE,MASSACHUSETTS.

POWER-PRESS.

SPECIFICATION forming part of Letters Patent No. 437,038, dated September 23, 1890.

' Application filed January 11,1890. Serial No. 336,635- (No model.)

To all whom it may concern: Be it known that I, LORENZO B. NEWELL, of Newton Centre, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements, in Power-Presses, of which the following is a specification.

, This invention relates to power-presses in which the shaft having the crank or eccentric that operates the cross-head carrying the movable die of the press is geared to a counter-shaft, otherwise termed in power-presses a pinion-shaft, journaled in bearings on the frame of the machine and driven by a connection with a driving shaft, said pinionshaft imparting motion to the die-operating shaft through a small gear or pinion on the pinion-shaft and a larger gear on the dieoperating shaft, so that the maximum power is imparted to the cross-head and the movable die carried thereby at the expense of speed, the die being necessarily moved at a comparatively slow rate.

A press organized as above indicated is necessary where considerable power is required to do comparatively heavy work, but it is objectionable for light work on account of the slowness of operation. It is therefore usual in manufacturing establishments using powerpresses to employ two machinesone organized to operate slowly and with maximum power, its operating-shaft being geared to a pinion-shaft, as above described, while the other is adapted to operate more rapidly at the expense of power, its die-operating shaft being connected by a belt directly to the driving-shaft Without the intervention of the pinion-shaft and gearing. There are, however, many small establishments where the employment of two power-presses is impracticable on account of the lack of floor-space, while many manufacturers cannot afford the expense of two presses.

My invention has for its object to meet the requirements of such establishments by enabling one press to be operated either through a pinion-shaft geared to the die-operating shaftor by a direct connection of the die-opcrating shaft with the driving-shaft without the intervention of the pinion-shaft, so that the press can be either operated with the maximum power at the expense of speed or more rapidly at the expense of power. 7

To this end the invention consists in the the construction shown in Fig. 6. represents another modification.

combination, with a power-press having a dieoperating shaft arranged in the usual or any suitable manner to operate the die-carrying cross-head, and a pinion-shaft geared to said die-operating shaft and adapted to receive motion from a driving-shaft, of a pulley on the die-operating shaft adapted to support a driving-belt, and nieans for detachably connecting the die-operating shaft with the pinion-shaft, the arrangement being such that the die-operating shaft can be disconnected from the pinion-shaft and belted directly to the driving-shaft when the maximum speed is desired, and connected with the pinionshaft and driven through the gearing when the maximum power is desired.

The invention also consists in certain details relating to the means for detachably connecting the die-operating shaft to the'pinion-shaft, all of which I will now proceed t describe and claim.

Of the accompanying drawings, forming a part of this specification, Figurel represents a'front elevation of a power-press embodying my improvements. Fig. 2 represents a rear elevation of the same. Fig.72 represents a section on line 2x 2, Fig. 2. Fig. 3represents a side elevation. Fig. 4 represents a section on line e 4, Fig. 3. Fig. 5 represents a top plan View of the pinion-shaft and one means for detachably connecting it to the die-open ating shaft. Fig.6 represents a similar view showing a different means for the same purpose. Fig. 7 represents a section on line 'Z 7, Fig. 6. Figs. Sand 9 represent end views of Fig. 10

The same letters of reference indicate the same parts in all ofthe figures.

In the drawings, (t represents the supporting-frame of a power-press, said fr'ame having the bed 2, which supports the fixed die and the guides 5 5, between which is the cross-head 3 that carries the'movable die.

b represents the die-operating shaft, which or any suitable construction, and in themselves form no part of my invention.

. 6 represents the pinion-shaft, which is yournaled in hearings on the frame a, and is provided with a small gear or pinion fi which ICO meshes with the larger gear g on the die-operating shaft 1), the pinion-shaft havinga pulley h, which is belted to the driving-shaft, so that power may be imparted from the driving-shaft through the pinion-shaft eand gears f g, as usual in power-presses of this class.

In carrying out my invention I provide means whereby the shaft 1) may be readily disconnected from the pinion-shaft, so that it may rotate independently of the latter, and combine with the said shaft 1) a pulley i, which is adapted to be belted directly to the driving-shaft, so that the shaft 1) may be driven directly from said shaft through the medium of the belt j instead of through the pinion-shaft e and gears f g.

The means for disconnecting the die-operatingshaft b from the pinion-shaft 6 may be variously modified.

In. Figs. 2 and 2 I show the pinion-shaft journaled in boxes It 7t, which are fitted to slide on dovetail guides Zlon the frame a, said guides being arranged so that the movement of the boxes 7070 on them in one direction will move the pinion-shaft e'away from theshaft b, and thus separate the gear f from the gear 9. The boxes may be secured to the guides lin either of two positions by means of bolts 0 o entering holes 0 o in the guides, as shown in Fig. 2.

\Vhen the operator desires to disconnect the shafts b 6, he withdraws the bolts ofrom the holes 0" and moves the boxes 70 backwardly to the position shown in Fig. Tand secures them by forcing the bolts into the holes 0. The die-operating shaft is thus adapted to be driven by the belt j, entirely independently of the shaft.

In Figs. 3 and 5 I show the pinion or gear f, movable lengthwise on the pinion-shafte and engaged therewith by a feather r onthe shaft, so that the said pinion or gear may be engaged with the gear g, as shown in full lines in Fig. 5, or moved out of engagement with said gear, as shown in dotted lines.

In Figs. 6, 7,8, and 9 I show the shaft e mounted eceentrically in a cylindrical hearing s, which is fitted to rotate in fixed bearings t t, and is provided with handles 10, whereby it may be partially rotated. hen the bearing 3 is turned to one position, it throws the shaft 6 away from the shaft Z) and separates the gears f g, as shown in Fig. 8, and when said bearing is turned to another position the shaft 6 is moved toward the shaft 11, and the gears f g are connected, as shown in Fig. 9.

It is obvious that various other means for the engagementof the pinion-shaftwith and its disengagement from the die-operating shaft may be adopted without departing from the spirit of my invention. The pulley i may be detachably secured to the gear g by a bolt 1;, as shown in Fig. 4, or it may be formed integral with said gear, as shown in Fig. 10, or connected withthe shaft Z) in any other suitable way.

It is obvious that a disk or crank affixed to the shaft 1) and having an eccentric wrist-pin connected by a connecting-rod with a crank on the driving-shaft would be a mechanical equivalent of the pulley 2'. Hence I do not confine myself strictly to said pulley, although it is the best mechanical appliance that can be used for the purpose.

I claim- 1. In a power-press, the combination, with the die-operating shaft, the pinion-shaft, and the gearing connecting said shafts, of a pulley orits equivalent on the die-operating shaft, and means for disconnecting the pinion-shaft from the die-operatin g shaft, whereby the dieoperating shaft maybe driven by a belt running on its pulleyindependently of'the pinionshaft, as set forth.

2. In a power-press, thecombination of the die-operating shaft, a gear g, and a pulley i or its equivalent on said shaft, the pinion-shaft and a pinion or gear thereon adapted to-engage the gear g, said gear f being movable toward and from the gear 9, whereby said gear may be connected and disconnected, as

set forth.

3. In a power-press, the combination of the die operating shaft, a gear g'and a. pulley z or its-equivalent on said shaft, the pinion-shaft and a pinion or gear thereon adapted to engage the gear g, and means, substantially as described, whereby the gear f may be moved into and out of engagement with the gear 9, as set forth.

4. In a powenpress, the combination of the die-operating shaft, a gear gand'a pulley i or its equivalent on said shaft, the pinion-shaft and a pinion or gear thereon adapted to em gage the gear 9, and a movable support or supports for the shaft (2, whereby the latter may be moved to engage the gear f with or disengage it from the gear g, as set forth.

5. In a power-press, the combination of the die-operating shaft, a gear g and a pulley i or .its equivalent on said shaft, the pinion-shaft and a pinion or gear thereon adapted to engage the gear '9, the movable boxes 7.: k, supporting the shaft 6, and the fixed guides [Z for said boxes, as set forth.

6. The improved power-press composed of a supporting-frame having the usual fixed and movable dies, a die-carrying cross-head,

an operating-shaft b for said cross-head, provided with agcargand a pulleytor its equivalent, the pinion-shaft 6, having a pinion or gear f, adapted to engage the gear g, said pinion or gear f being movable toward and from the gear g, as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 7th day of January, A. D. 1890.

LORENZO B. NEVVELL. 

